| County Government | CenCom - 911 / ETSB / Sheriff | 38.42347 | -90.05493 | 24 |
| County Government | Townships | 38.46649 | -89.99451 | 22 |
| County Government | St. Clair County Fair Association | 38.50086 | -89.98159 | 0.25 |
| County Government | St. Clair County Transit District/MetroLink/MetroBus | 38.42347 | -90.05493 | 24 |
| EMS Agencies / Patient Reports | Hospitals / Air Medical | 38.42347 | -90.05493 | 24 |
| EMS Agencies / Patient Reports | AMR Abbott EMS (Belleville) | 38.52005 | -89.98399 | 45 |
| EMS Agencies / Patient Reports | MedStar Ambulance (of Sparta) | 38.43208 | -89.82422 | 30 |
| CENCOM East PSAP | 911 Center Dispatch | 38.42347 | -90.05493 | 24 |
| CENCOM East PSAP | Fayetteville | 38.37755 | -89.79538 | 0.33 |
| CENCOM East PSAP | Freeburg | 38.31504 | -91.92267 | 0.4 |
| CENCOM East PSAP | Hecker | 38.30505 | -89.99427 | 3 |
| CENCOM East PSAP | Lebanon | 38.60394 | -89.80732 | 1 |
| CENCOM East PSAP | Lenzburg | 38.26422 | -89.86149 | 3.5 |
| CENCOM East PSAP | Marissa | 38.24607 | -89.75504 | 1 |
| CENCOM East PSAP | Mascoutah | 38.49102 | -89.80276 | 1.33 |
| CENCOM East PSAP | Millstadt | 38.46144 | -90.09178 | 1 |
| CENCOM East PSAP | New Athens | 38.32644 | -89.87705 | 1 |
| CENCOM East PSAP | Smithton | 38.40866 | -89.99205 | 0.75 |
| CENCOM East PSAP | St. Libory | 38.36255 | -89.70982 | 0.75 |
| CENCOM East PSAP | Union Fire Company (Millstadt) | 38.47725 | -90.08446 | 7 |
| CENCOM West PSAP | CENCOM West (East St Louis) | 38.628 | -90.125 | 3.82 |
| CENCOM West PSAP | Cahokia Heights | 38.63779 | -90.02197 | 7.5 |
| CENCOM West PSAP | Camp Jackson Fire (Cahokia Heights) | 38.56615 | -90.1902 | 5.5 |
| CENCOM West PSAP | Caseyville | 38.63672 | -90.02798 | 2 |
| CENCOM West PSAP | Dupo | 38.51616 | -90.21039 | 2 |
| CENCOM West PSAP | East Saint Louis | 38.61526 | -90.13252 | 2.75 |
| CENCOM West PSAP | Fairmont City | 38.64977 | -90.09316 | 1 |
| CENCOM West PSAP | Sauget | 38.59644 | -90.18483 | 1 |
| MECOMM PSAP (Ofallon) | Metro East Communications (MECOMM) | 38.594 | -89.931 | 5.16 |
| MECOMM PSAP (Ofallon) | Fairview Heights | 38.58561 | -89.97236 | 2 |
| MECOMM PSAP (Ofallon) | Fairview-Caseyville Township Fire Protection District | 38.61472 | -89.99794 | 4 |
| MECOMM PSAP (Ofallon) | French Village Fire (Fairview Heights) | 38.60033 | -90.05011 | 2 |
| MECOMM PSAP (Ofallon) | O'Fallon | 38.59227 | -89.91121 | 1.8 |
| MECOMM PSAP (Ofallon) | O'Fallon-Shiloh EMS | 38.58145 | -89.88602 | 3 |
| MECOMM PSAP (Ofallon) | Shiloh | 38.56144 | -89.89732 | 1.5 |
| Belleville PSAP | Belleville | 38.53125 | -90.01099 | 3.5 |
| Belleville PSAP | Swansea | 38.53394 | -89.98899 | 1.13 |
| Schools | Belleville Township High School District 201 | 38.522 | -89.981 | 4.55 |
| Schools | Belleville / Swansea Schools | 38.502 | -89.938 | 5.96 |
| Schools | Cahokia Unit School District 187 | 38.575 | -90.151 | 3.29 |
| Schools | Dupo Community Unit School District 196 | 38.51616 | -90.21039 | 4 |
| Schools | East St. Louis School District 189 | 38.6245 | -90.15094 | 5 |
| Schools | Fairview Heights Schools | 38.58894 | -89.99038 | 3 |
| Schools | Freeburg Schools | 38.42755 | -89.91371 | 5 |
| Schools | Lebanon Community Unit School District 9 | 38.60394 | -89.80732 | 4 |
| Schools | Marissa Community Unit School District 40 | 38.25005 | -89.7501 | 3 |
| Schools | Mascoutah Community Unit School District 19 | 38.49033 | -89.79315 | 3 |
| Schools | Millstadt School District 160 | 38.46144 | -90.09178 | 3 |
| Schools | New Athens School District 60 (NA/Lenzburg) | 38.303 | -89.849 | 5 |
| Schools | O'Fallon Schools | 38.59227 | -89.91121 | 4 |
| Schools | Shiloh Village School District 85 | 38.56144 | -89.89732 | 3 |
| Schools | Smithton Community Consolidated District 130 | 38.40866 | -89.99205 | 4 |
| Colleges | Southwestern Illinois College (Belleville) (SWIC) | 38.515 | -89.924 | 0.41 |
| Colleges | McKendree University (Lebanon) | 38.609 | -89.815 | 0.28 |
| Amateur Radio | Miscellaneous | 38.42347 | -90.05493 | 24 |
| Amateur Radio | SW Illinois Digital Group WS9IDG Shiloh | 38.42347 | -90.05493 | 24 |
| Illinois State | Miscellaneous | 38.42347 | -90.05493 | 24 |
| Illinois State | Southwestern Illinois Correctional Center (E St. Louis) [K-47] | 38.62317 | -90.12308 | 1 |
| Federal Government | Scott Air Force Base | 38.42347 | -90.05493 | 24 |
| Federal Government | Federal | 38.42347 | -90.05493 | 24 |
